A magnetic device for plastic particles

Abstract

This invention provides a magnetic granule-passing device, comprising a processing shell, a mounting frame slidably fitted on one side of the processing shell, a magnet inclinedly arranged on the inner wall of the mounting frame, and two spring telescopic rods mounted on the upper side of the inner wall of the processing shell. The output ends of the two spring telescopic rods are fixedly connected to a scraper that mates with the upper side of the magnet. An adjusting screw is threaded onto the upper side of the processing shell. By setting up a pull-out mounting frame, a scraper mates with the magnet, and an impurity collection box, when a large amount of impurities are adsorbed on the magnet surface, simply unlock the locking mechanism and pull the mounting frame. The scraper will then adhere tightly to the magnet surface under the action of the spring telescopic rods. As the mounting frame moves, it automatically scrapes off the impurities, which fall directly into the impurity collection box below. This eliminates the need for manual disassembly and wiping, improving cleaning efficiency and preventing secondary contamination of the purified granules by impurities during the cleaning process.

Description

Technical Field

[0001] This utility model relates to the field of magnetic transfer device technology, specifically a magnetic transfer device for plastic particles. Background Technology

[0002] In the plastic recycling and processing industry, plastic granules often contain ferromagnetic impurities due to raw material mixing and equipment wear. If these impurities are not removed, they will affect the quality of subsequent products and even damage the processing equipment. Therefore, plastic granule magnetic transfer devices have become key equipment. They use the magnetic field generated by the magnet to adsorb ferromagnetic impurities in the granules to achieve the purpose of purification. At present, most common magnetic transfer devices adopt a fixed magnet structure, with the magnet directly installed in the granule conveying channel, using the magnetic field force to capture impurities.

[0003] However, in the long term, ferromagnetic impurities adsorbed on the surface of the magnet in existing magnetization devices will gradually accumulate, reducing the magnetic field strength and adsorption efficiency. Traditional cleaning methods rely on manual disassembly of the device and wiping of the magnet, which is not only cumbersome and time-consuming, leading to increased equipment downtime and affecting production efficiency, but also causes impurities that fall off during the cleaning process to easily mix into the purified plastic granules, causing secondary pollution, making it difficult to guarantee the purity of the granules, and posing a hidden danger to subsequent processing. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a magnetic granule-passing device to solve the problems mentioned in the background. This invention features a novel structure. By incorporating a retractable mounting frame, a scraper that engages with the magnet, and an impurity collection box, when a large amount of impurities are adsorbed on the magnet surface, simply unlocking the locking mechanism and pulling the mounting frame allows the scraper to adhere tightly to the magnet surface under the action of a spring telescopic rod. As the mounting frame moves, it automatically scrapes away the impurities, which fall directly into the impurity collection box below. This eliminates the need for manual disassembly and wiping, improving cleaning efficiency and preventing secondary contamination of the purified granules by impurities during the cleaning process.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic granule magnetizing device, comprising a processing shell, a mounting frame slidably fitted on one side of the processing shell, a magnet inclinedly arranged on the inner wall of the mounting frame, two spring telescopic rods mounted on the upper side of the inner wall of the processing shell, a scraper cooperating with the upper side of the magnet being fixedly connected to the output ends of the two spring telescopic rods, an adjusting screw threadedly fitted on the upper side of the processing shell, an L-shaped adjusting plate slidably fitted on the upper side of the inner wall of the processing shell, a conveying shell mounted on the upper side of the processing shell, a conveying mechanism disposed inside the conveying shell, a feeding trough opened on the upper side of the processing shell, a diverting plate located below the feeding trough fixedly connected to the upper side of the inner wall of the processing shell, an installation groove opened on one side of the inner wall of the processing shell, and a snap-fit ​​mechanism disposed inside the installation groove.

[0006] Furthermore, the lower end of the adjusting screw is rotatably fitted onto the upper side of the L-shaped adjusting plate, which is located on the upper side of the magnet. A conveying channel is formed between the L-shaped adjusting plate and the magnet. One end of the mounting frame forms a feeding channel connected to the conveying channel with one side of the inner wall of the processing shell.

[0007] Furthermore, the conveying mechanism includes a feed hopper fixedly connected to the upper side of the conveying shell, a conveying auger rotatably fitted to the inner wall of the conveying shell, a motor mounted on the upper side of the conveying shell, a drive sprocket fixedly connected to the output end of the motor, a driven sprocket fixedly connected to one end of the conveying auger extending to one side of the conveying shell, and a connecting pipe fixedly connected to the lower side of the conveying shell.

[0008] Furthermore, the driving sprocket and the driven sprocket are connected by a chain meshing, and the chain tension can be adjusted. The lower end of the connecting pipe is connected to the feed trough.

[0009] Furthermore, the snap-fit ​​mechanism includes a trapezoidal insert plate that slides and elastically engages with the inner wall of the mounting groove. A strip groove is provided on one side of the trapezoidal insert plate. A rotating rod is rotatably engaged on one side of the processing shell. One end of the rotating rod extends to the inner wall of the mounting groove and is fixedly connected to a connecting plate. A guide rod is fixedly connected to one side of the connecting plate. A snap-fit ​​groove is provided on the lower side of the mounting frame.

[0010] Furthermore, the guide rod is slidably fitted on the inner wall of the strip groove, the connecting plate is located on one side of the trapezoidal insert plate, and the upper end of the trapezoidal insert plate is engaged with the inner wall of the slot.

[0011] Furthermore, a particle collection box is slidably fitted on one side of the processing shell, and an impurity collection box is slidably fitted on the side of the processing shell located below the scraper.

[0012] Furthermore, two limiting rods are fixedly connected to the upper side of the L-shaped adjusting plate, and the two limiting rods are slidably engaged on the upper side of the processing shell.

[0013] Furthermore, T-shaped grooves are provided on both sides of the inner wall of the processing shell, and T-shaped sliders are slidably fitted on the inner wall of the T-shaped grooves. The two T-shaped sliders are respectively fixedly connected to both sides of the mounting frame.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model, by setting up a pull-out mounting frame, a scraper that cooperates with the magnet, and an impurity collection box, allows the installation frame to be pulled out by simply unlocking the locking mechanism when a large amount of impurities are adsorbed on the magnet surface. The scraper will then adhere tightly to the magnet surface under the action of the spring telescopic rod. As the mounting frame moves, the impurities are automatically scraped off and fall directly into the impurity collection box below. This eliminates the need for manual disassembly and wiping, improving cleaning efficiency and avoiding secondary contamination of the purified particles by impurities during the cleaning process.

[0016] 2. This utility model, by setting an adjusting screw, an L-shaped adjusting plate, and a limiting rod, can flexibly adjust the width of the conveying channel. For plastic particles of different sizes, simply rotating the adjusting screw can drive the L-shaped adjusting plate to move up and down. Under the guidance of the limiting rod, the stability of the adjustment process is ensured, enabling the device to adapt to the magnetic requirements of various specifications of plastic particles, thus improving the versatility and applicability of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a plastic particle magnetization device according to the present invention;

[0018] Figure 2 This is a schematic cross-sectional view of the conveyor shell of a plastic granule magnetic transfer device according to the present invention.

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the processing shell of the magnetic device for plastic particles according to this utility model;

[0020] Figure 4 This is a schematic diagram of the L-shaped adjusting plate installation structure of a plastic particle magnetization device according to this utility model;

[0021] Figure 5 This is a schematic diagram of the mounting frame and cross-sectional structure of the magnet in the magnetic device for plastic particles according to this utility model.

[0022] Figure 6 This is a schematic diagram of the trapezoidal insert plate connection structure of a plastic particle magnetization device according to the present invention;

[0023] Figure 7 This is a schematic diagram of the snap-fit ​​mechanism of a plastic particle magnetic device according to the present invention.

[0024] In the diagram: 1. Processing shell; 2. Mounting frame; 3. Magnet; 4. Spring telescopic rod; 5. Scraper; 6. Adjusting screw; 7. L-shaped adjusting plate; 8. Conveying shell; 9. Conveying mechanism; 91. Feed hopper; 92. Conveying auger; 93. Motor; 94. Drive sprocket; 95. Driven sprocket; 96. Connecting pipe; 10. Discharge chute; 11. Diverter plate; 12. Mounting slot; 13. Snap-fit ​​mechanism; 131. Trapezoidal insert plate; 132. Strip groove; 133. Rotating rod; 134. Connecting plate; 135. Guide rod; 136. Slot; 14. Particle collection box; 15. Impurity collection box; 16. Limiting rod; 17. T-shaped slide; 18. T-shaped slider. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] Please refer to Figures 1 to 7This utility model provides a technical solution: a plastic granule magnetic device, including a processing shell 1, a mounting frame 2 slidably fitted on one side of the processing shell 1, a magnet 3 inclinedly arranged on the inner wall of the mounting frame 2, two spring telescopic rods 4 installed on the upper side of the inner wall of the processing shell 1, a scraper 5 that cooperates with the upper side of the magnet 3 fixedly connected to the output end of the two spring telescopic rods 4, an adjusting screw 6 threadedly fitted on the upper side of the processing shell 1, an L-shaped adjusting plate 7 slidably fitted on the upper side of the inner wall of the processing shell 1, a conveying shell 8 installed on the upper side of the processing shell 1, a conveying mechanism 9 arranged inside the conveying shell 8, a feeding groove 10 opened on the upper side of the processing shell 1, a diverting plate 11 located below the feeding groove 10 fixedly connected to the upper side of the inner wall of the processing shell 1, an installation groove 12 opened on one side of the inner wall of the processing shell 1, and a snap-fit ​​mechanism 13 arranged inside the installation groove 12. The lower end of the adjusting screw 6 is rotatably engaged with the upper side of the L-shaped adjusting plate 7, which is located above the magnet 3. A conveying channel is formed between the L-shaped adjusting plate 7 and the magnet 3. One end of the mounting frame 2 forms a feeding channel connected to the conveying channel with one side of the inner wall of the processing shell 1. A particle collection box 14 is slidably engaged with one side of the processing shell 1, and an impurity collection box 15 is slidably engaged with one side of the processing shell 1 below the scraper 5. Two limiting rods 16 are fixedly connected to the upper side of the L-shaped adjusting plate 7, and the two limiting rods 16 are slidably engaged with the upper side of the processing shell 1. T-shaped grooves 17 are provided on both sides of the inner wall of the processing shell 1, and T-shaped sliders 18 are slidably engaged with the inner wall of the T-shaped grooves 17. The two T-shaped sliders 18 are fixedly connected to both sides of the mounting frame 2. When plastic granules are magnetized, the processing shell 1 provides the installation base for the entire device. The mounting frame 2 slides in the T-shaped groove 17 on the inner wall of the processing shell 1 via the T-shaped sliders 18 on both sides, which can drive the magnet 3 in and out of the processing shell 1. The tilted setting of the magnet 3 can prolong the contact time between the plastic granules and the magnetic field and improve the adsorption effect of impurities. The two spring telescopic rods 4 on the upper side of the inner wall of the processing shell 1 push the scraper 5 to always be in contact with the upper side of the magnet 3, which is convenient for subsequent cleaning of impurities. Rotating the adjusting screw 6 on the upper side of the processing shell 1 can drive the L-shaped adjusting plate 7 to slide up and down. Combined with the guiding action of the limiting rod 16, the width of the conveying channel between the L-shaped adjusting plate 7 and the magnet 3 can be adjusted to adapt to the magnetization requirements of plastic granules of different sizes. The conveying mechanism 9 in the conveying shell 8 conveys the granules to the unloading trough 10. The diverting plate 11 evenly distributes the granules into the conveying channel. The snap-fit ​​mechanism 13 can fix the mounting frame 2 to ensure the stability of the magnetization process.

[0027] In this embodiment, the conveying mechanism 9 includes a feed hopper 91 fixedly connected to the upper side of the conveying shell 8. A conveying auger 92 is rotatably fitted to the inner wall of the conveying shell 8. A motor 93 is mounted on the upper side of the conveying shell 8. A drive sprocket 94 is fixedly connected to the output end of the motor 93. One end of the conveying auger 92 extends to one side of the conveying shell 8 and is fixedly connected to a driven sprocket 95. A connecting pipe 96 is fixedly connected to the lower side of the conveying shell 8. The drive sprocket 94 and the driven sprocket 95 are connected by a chain meshing connection, and the chain tension can be adjusted. The lower end of the connecting pipe 96 is connected to the discharge trough 10. When the conveying mechanism 9 is working, plastic granules enter the conveying shell 8 from the feed hopper 91. The motor 93 starts and drives the drive sprocket 94 to rotate. Through chain transmission, the driven sprocket 95 rotates, which in turn drives the conveying auger 92 to rotate, smoothly conveying the granules to the connecting pipe 96. The connecting pipe 96 guides the granules into the discharge trough 10, realizing continuous and stable conveying of granules. The chain tension is adjustable, which can ensure the reliability of the transmission, ensure the efficiency of granule conveying, and provide a guarantee for uniform magnetic transfer in the subsequent process.

[0028] In this embodiment, the snap-fit ​​mechanism 13 includes a trapezoidal insert plate 131 that slides and elastically engages with the inner wall of the mounting groove 12. A strip groove 132 is formed on one side of the trapezoidal insert plate 131. A rotating rod 133 is rotatably engaged with one side of the processing housing 1. One end of the rotating rod 133 extends to the inner wall of the mounting groove 12 and is fixedly connected to a connecting plate 134. A guide rod 135 is fixedly connected to one side of the connecting plate 134. A snap-fit ​​groove 136 is formed on the lower side of the mounting frame 2. The guide rod 135 slides within the inner wall of the strip groove 132. The connecting plate 134 is located on one side of the trapezoidal insert plate 131, and the upper end of the trapezoidal insert plate 131 snaps into the inner wall of the snap-fit ​​groove 136. In the snap-fit ​​mechanism 13, when the mounting frame 2 slides into the processing shell 1, the lower end of the mounting frame 2 will press against the inclined surface of the trapezoidal insert plate 131, causing the trapezoidal insert plate 131 to compress the spring and slide into the mounting groove 12. When the mounting frame 2 is fully pushed in, and the snap-fit ​​groove 136 on its lower side aligns with the trapezoidal insert plate 131, the trapezoidal insert plate 131 will return to its original position under the action of the spring force, and the upper end will snap into the snap-fit ​​groove 136, thereby limiting and fixing the mounting frame 2 and preventing it from sliding during the magnetization process. When it is necessary to unlock and pull out the mounting frame 2, rotate the rotating rod 133 to drive the connecting plate 134 to rotate, so that the guide rod 135 slides in the strip groove 132 of the trapezoidal insert plate 131, pushing the trapezoidal insert plate 131 to overcome the spring force and slide downward, disengaging from the snap-fit ​​groove 136. At this time, the mounting frame 2 can be easily pulled out, which is convenient for maintenance and other operations on the magnet 3.

[0029] When using the device, adjust the position of the L-shaped adjusting plate 7 by rotating the adjusting screw 6 according to the particle size of the plastic granules. Combined with the guide of the limiting rod 16, determine the appropriate width of the conveying channel. Then, the conveying mechanism 9 starts to work. The granules enter from the feed hopper 91, are conveyed to the connecting pipe 96 by the conveying auger 92, and then evenly enter the conveying channel through the discharge trough 10 and the diverting plate 11. When the granules flow in the conveying channel, they are affected by the magnetic field generated by the inclined magnet 3. The ferromagnetic impurities are attracted to the magnet 3. After being magnetized, the granules fall from the discharge channel into the granule collection box 14. When there are many impurities on the surface of the magnet 3, rotate the rotating rod 133 to unlock the locking mechanism 13 and pull the mounting frame 2. At this time, the spring telescopic rod 4 pushes the scraper 5 to stick to the surface of the magnet 3. As the mounting frame 2 moves, the scraper 5 scrapes off the impurities, which fall into the impurity collection box 15, completing the impurity cleaning. After cleaning, the mounting frame 2 is reset and automatically limited and fixed by the locking mechanism 13 to continue the magnetization work.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for magnetizing plastic granules, comprising a processing shell (1), characterized in that: A mounting frame (2) is slidably fitted on one side of the processing shell (1). A magnet (3) is inclinedly arranged on the inner wall of the mounting frame (2). Two spring telescopic rods (4) are installed on the upper side of the inner wall of the processing shell (1). A scraper (5) that cooperates with the upper side of the magnet (3) is fixedly connected to the output end of the two spring telescopic rods (4). An adjusting screw (6) is threadedly fitted on the upper side of the processing shell (1). An L-shaped adjusting plate (7) is slidably fitted on the upper side of the inner wall of the processing shell (1). A conveying shell (8) is installed on the upper side of the processing shell (1). A conveying mechanism (9) is provided inside the conveying shell (8). A feeding groove (10) is opened on the upper side of the processing shell (1). A diverter plate (11) located below the feeding groove (10) is fixedly connected to the upper side of the inner wall of the processing shell (1). An installation groove (12) is opened on one side of the inner wall of the processing shell (1). A snap-fit ​​mechanism (13) is provided inside the installation groove (12).

2. The magnetic device for passing plastic particles according to claim 1, characterized in that: The lower end of the adjusting screw (6) is rotatably fitted on the upper side of the L-shaped adjusting plate (7). The L-shaped adjusting plate (7) is located on the upper side of the magnet (3). A conveying channel is formed between the L-shaped adjusting plate (7) and the magnet (3). One end of the mounting frame (2) and one side of the inner wall of the processing shell (1) form a feeding channel that is connected to the conveying channel.

3. The magnetic device for passing plastic particles according to claim 1, characterized in that: The conveying mechanism (9) includes a feed hopper (91) fixedly connected to the upper side of the conveying shell (8), a conveying auger (92) rotatably fitted to the inner wall of the conveying shell (8), a motor (93) mounted on the upper side of the conveying shell (8), a drive sprocket (94) fixedly connected to the output end of the motor (93), a driven sprocket (95) fixedly connected to one end of the conveying auger (92) extending to one side of the conveying shell (8), and a connecting pipe (96) fixedly connected to the lower side of the conveying shell (8).

4. The magnetic device for plastic granules according to claim 3, characterized in that: The driving sprocket (94) and the driven sprocket (95) are connected by a chain meshing, and the chain tension can be adjusted. The lower end of the connecting pipe (96) is connected to the feed trough (10).

5. The magnetic device for passing plastic particles according to claim 1, characterized in that: The snap-fit ​​mechanism (13) includes a trapezoidal insert plate (131) that slides and elastically fits the inner wall of the mounting groove (12). A strip groove (132) is provided on one side of the trapezoidal insert plate (131). A rotating rod (133) is rotatably fitted on one side of the processing shell (1). One end of the rotating rod (133) extends to the inner wall of the mounting groove (12) and is fixedly connected to a connecting plate (134). A guide rod (135) is fixedly connected to one side of the connecting plate (134). A snap-fit ​​groove (136) is provided on the lower side of the mounting frame (2).

6. The magnetic device for passing plastic particles according to claim 5, characterized in that: The guide rod (135) is slidably fitted on the inner wall of the strip groove (132), the connecting plate (134) is located on one side of the trapezoidal insert plate (131), and the upper end of the trapezoidal insert plate (131) is engaged with the inner wall of the slot (136).

7. The magnetic device for passing plastic particles according to claim 1, characterized in that: A particle collection box (14) is slidably fitted on one side of the processing shell (1), and an impurity collection box (15) is slidably fitted on one side of the processing shell (1) below the scraper (5).

8. The magnetic device for passing plastic granules according to claim 1, characterized in that: Two limiting rods (16) are fixedly connected to the upper side of the L-shaped adjusting plate (7), and the two limiting rods (16) slide in fit on the upper side of the processing shell (1).

9. The magnetic device for passing plastic particles according to claim 1, characterized in that: T-shaped grooves (17) are provided on both sides of the inner wall of the processing shell (1). T-shaped sliders (18) are slidably fitted on the inner wall of the T-shaped grooves (17). The two T-shaped sliders (18) are respectively fixedly connected to both sides of the mounting frame (2).

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